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Show 1879.] BIRDS FROM ANTIOQUIA. 489 Antioquia lies on the left bank of the Cauca, some eight or ten miles off. Cauca. The locality thus indicated is probably intended for the valley of the Cauca, which Mr. Salmon crossed on his routes to Antioquia, and on his expeditions to Concordia and Jerico. Concordia is some 10 miles off the left bank of the Cauca, at an elevation of 6000 feet, and about 50 miles south-west of Medellin. Envigado is near the sources of the Rio Poru, a confluent of the Cauca, and lies 12 miles south of Medellin, at an altitude of 5500 feet. Frontino is on the upper waters of the Sucio, which flows into the Atrato, some 30 or 40 miles west of Antioquia city. Jerico is on the left bank of the Cauca, south of Medellin. Here the splendid new Tanager Chlorochrysa nitidissima was obtained. Medellin, the capital of the State of Antioquia, is situated on the Rio Poru, a branch of the Cauca. Its elevation is about 5000 feet. Pocune. Rio Pocune is near Remedios, and is a small confluent of the Rio Vagre, which runs into the Neche and so into the Poru. Mr. Salmon's collecting-station here was at an altitude of about 1970 feet. Bemedios (elevation 2360 feet) is far to the north-east of Medellin, and is on the upper source of the Ite-, a confluent of the Magdalena. Retiro lies 25 miles south of Medellin, beyond Envigado, at an elevation of 8000 feet. Rio Neche or Nichi is a confluent of the Rio Poru, which it enters at Dos Bocas. Mr. Salmon's collections were made a few miles above the confluence. Rio Negro is a town on the river of the same name, which runs into the Magdalena. This town is some 25 miles east of Medellin. Sta. Elena we have not been able to find marked in de Greiff's map. But we ascertain from Mosquera's c Diccionario geografico' that it is "a Quebrada" between 5° and 6° N. lat. It is therefore probably on the right bank of the Cauca, somewhere between Retiro and Jerico. San Miguel is also not marked in the map. General Mosquera gives five places of this name in the State of Antioquia. III. SHORT SUMMARY OF PRECEDING AUTHORITIES O N THE BRIDS OF COLOMBIA. Our knowledge of the ornithology of this part of South America is mainly due to the large collections of bird-skins made since 1840 by native collectors in the vicinity of Bogota, the capital of the Confederation, and imported into Europe as merchandise. These skins are of very peculiar " make," and are well known to all ornithologists. The circumstances under which these skins are collected, and a full list of the species contained in them as far as they were known |